Classifier.



L.G.TRENT.

GLASSIPIEE.

APPLICATION FILED DEC. 29, 1910.

1,041,909. Patnted 001;. 22, 1-912.

3 SHEBTSSHEET 1;

SQMM- L. G. TRENT OLASSIPIBR.

, APPLICATION nun no. 29, 1910. 1,041,909. Patented 0011.22, 1912.

a SHEETS-SHEET 2.

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L.- c. TRENT. CLASSIFIEB.

1 APPLICATION rush 1120.29, 1910; 1 1,041,909; ,P'atent'd 0011.22, 1912.

3 SHEETSSHEET 3.

LAMARTINE C. TRENT, 0]? LOS ANGELES, CALIFORNIA.

GLASSIFIER.

Specification of Letters Patent.

Patented Oct. 22, 1912.

Application filed December 29, 1910. Serial No. 599,925.

To all whom it may concern:

Be it known that I, LAMARTINE C. TRENT, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented certain new and useful Improvements in Classifiers, of which the following is a specification.

The hereinafter described invention relates to an improvedmachine mainly designed for'separating sand or granular material from slimes flowing from a stamp battery or other machinery for crushing and mixing quartz, ores, clay, sand, in fact, the invention 'is' adapted for use generally wherever the separation of coarse and finer products isto be made in a liquid state; the object being to effectively and expeditiously separate the coarse particles from the liquid material carrying the same, the separation or classifying of the material being carried out as a continuous operation, the coarhe material being separated and discharged at one portion of the machine while the lighter portions thereof are forced therefrom through an independent outlet.

To comprehend the invention reference should be had to the accompanying sheets of drawings, wherein.

Figure 1 is a top plan view of the improved classifier. sectional view taken on line m'm Fig. 1 of the drawings, viewed in the direction of the arrows a, said view illustrating the general arrangement of the working parts. Fig. 3 is a part sectional end elevation on line g 3 Fig. 1 of the drawings, viewed in the direction of the arrows a, disclosing the feed sluice, the interior of the conical drum, the

receiving blades for directing the separated coarse material toward the discharge outlet, the shelves for raising the material, the rolls for driving the drum, and the trough for receiving the discharge of the finer mameans, as, for instance,,a power belt working over the fast and loose belt pulleys 3 and 3 mounted on the cross-shaft 1 supporting the said roller 2. The face of the roller 2 is Fig. 2 is a'longitudinal' corrugated or fluted and upon the said rollers 2 and 2 rests and is supported for rotation a drum 5, preferably of conical form carrying a tire or wear surface 5 which bears onto the rollers 2 and 2. From the interior of the said drum extends a hollow shaft 6, which connects with a diaphragm 6 on the interior of the drum, the said diaphragm being parallel to and concentric with the end of the drum 5. This diaphragm is connected to the outer end 7 of the drum or conical vessel 5 by means of the radial ribs, arms or blades 7 which are employed for receiving and guiding the separated coarse material with the outlet opening in the end 7 of the drum or conical vessel 5, which hopper deposits the material into the conveyer or suitable receptacle 8 located for receiving the same.

The outer end section of the drum '5 is formed with a step portion 9 which is of larger diameter than the conical portion of thedrum, and it is this step portion of the drum which carries the tire or wear surface 5. The interior of the said step portion forms an enlarged pocket or circumferential groove 9 for the reception of the settled? portions of the material to be treated, which gravitates therein from the main body of the drum through the annular passage-way 10 formed by the diaphragm 6. Within this enlarged diameter or step portion of the drum are secured a plurality of circumferentially arranged longitudinally disposed shelves, buckets, or vanes 10, which act as paddles or collecting surfaces for gathering up the material confined within the annular groove 9 during the rotary motion of the drum 5 and serve to raise or elevate the same.

The projecting end of the hollow shaft 6 works within a bearing 11 supported by a.

bracket 12 upwardly projected from the suped serves the purpose of steadying the rotatable drum on the sustaining rollers 2 andv 2 and holding the same in position endwise thereon. On the-said bracket 12 18 mounted '10s 1 the feed hopper 12 for the material to be/ treated, which hopper connects'with a down-"- wardly inclined forked sluice 13 extended within the rotatable drum 5 for carrying the liquid material into ,the machine and dis- 70 into the discharge hopper 8 which connects a is extended a Water supply pipe 13' for-adshaftand escapes through an outlet 14 in" niitting Water therein, which water is discharged from the inner'end of the hollow the diaphragm 6 into the separating chamber 14 of the rotatable drum. I,

, In the operatlon of the machine the liquid material for treatment containing the fine and coarse particles of solids flows from the hopper 12 into the forked sluice 1'3 and is .diScharged from the same into the main bodyor settling chamber 15 of therotatabledrum 5 adjacent the diaphragm -6, the drum 5 rotating. during such feed of the material. The action of the revolving drum causes'the heavier or coarse particles to gradually-settle onto the inclined bottom ofthef chamber and gravitate through the annular passage-Way 10 into the en-x larg'ed collecting or annular rooved port1on 9 of-t-he drum 5, this settling action "being-accelerated and assisted by the jolting motion imparted tothedrum 5 as the same "rotates orrevolves overthe fluted surface of "theroller 2 which causes rapid vibr'ations tending to cause the coarser material tosettle more rapidly in the bottom of the enlarged portion of the'drum, 5. In thus settling the coarse particles enter bet-ween the trans-j versely disposed circumfercntially, arranged blades, shelves or 'sc'oops 10 of the'rotating drumfi and are raised or elevated thereby, "the" vibrations imparted to the rotating "drum packing the materialonto the blades,

"portionlt'o' pour or run off as the blades shelves on-scoOps and allowingthe liquid reach the top of the interior diameterof the drnmt As the loaded blades approach this pointfthe material held thereon is shaken .50 p I 2 clgiseclassificationor separatlon, water" is loose and assisted by the vibrations offthe machine fallsonto the arms or ribs 7'-,-be'ing gradually guided thereby into the spout-8 which discharges onto the conveyer r receptacle 8' and the separationthus accom plished. The constant rolling of the drum 5' keepsormaintain's the finer particles or slimes suspended 'in the "liquid, which is gradually discharged through the overflow outlet 16' into-the run-Way 16.

-' If it is. desired to make. an exceedingly introduced through the hollow shaftfi and :ai'lowed toflowbetween the diaphragm 6 and the :head end! 1 of the machine. This Twitter finds its Way by gravity into the smalleridiameter- "of the machine and 1n doing so creates a currentwhich keeps every particle of the'slimesffrom entering through the passageway 9 into the enlarged diameter of the'rotating drum for the-"coarse particles, and this back flowing waterf washes any remaining slimes which may cling or'.

adhere to the granular materialfiowing into the enlarged portion of the drum.-

To preventthe entire loadot the end por- 'the received material onto the-inner portion-- granular product free from slimes and suit "tions of blades 10 falling onto the ribs 7, there are arranged intermediate the outerend portion of adjacentribs the short ribs 1;? forming'deflectors which received por tion of the falling material and discharge of the longerrib immediately below the same. The vibrations imparted to themtating drum causes the heaviest material to settle-rapidly to' the lowest portion of the drum,- to pack the heavier material onto the blades 10 so as to permit of the liquid running off or decanting as the blades are carried upwardly, and finally to shake the packed material from off the blades as they approach a vertical position onto the ribs radiating from the center of the dia- The described machine is capable for use .in "connection with all classes of work 5 wherein the separation of heavier particles from material 18 required. It is designed as a classifier for separating sands or granular material from sl1mes, p1:oduc-mg a clean 7 able for cyanld mllls or concentrating mills.

" It is adapted to producing clean sands for separated from sand or granular material. \Vhile the described arrangementof the .iq

Working parts is desirableand preferred, a it is obviousthat the invention is not so confined. a j Having thus described the invention jwhat tected by Letters Patent is- 1. In anapparatus forthe describedpun.

is" claimed as new and desired to bepro- 0- "pose, the same comprising a horizontally disposed rotatable drum provided with a central discharge in its outer end, a 'verti 5' cally disposeddiaphragm secured Within the drum, a Water supply, mechanism for imparting rotation to the drum, means for feeding material to the interior of the drum,

and devices arranged therein for raising the 1 6- a separated heavier particles and discharging the same, said means including a conical projection on said diaphragmleading to said central outlet, 'separatecl blades on said projection,- and auxiliary relatively short Y lades on the 'diaphragminterposed between the said. first mentioned blades.

2. In an apparatus for-the'described purpose, the combination with a "horizontally disposed rotatable drum provided. Wlt'll a discharge outlet and an overflow outlet, a vertically disposed disk shaped diaphragm within the drum extending to a point adj acent the periphery of the drum and separated therefrom by a relatively narrow space, a plurality of radial ribs projecting therebetween and connecting the diaphragm to-the outer end wall of the: drum, circumferentially disposed elevating devices carried by the drum intermediate the said end wall and the diaphragm, the said diaphragm extending below the level of the material as determined by said overflow outlet, means for feeding water with the material into the drum between'the diaphragm and the overflow, and mechanism for imparting rotation to the drum.

a 3. In a classifier for "the described purpose, the combination of a rotatable drum having at one end a discharge outlet, a rear end wall for the drum having a substantially central discharge opening, a diaphragm within the drum and extending at its periphery to a point adjacent to but separated from the interior peripheral wall of the drum, separated radial blades projecting from" one surface of said diaphragm and connecting with the end wall of the drum, forming guides to deliver directly to said central discharge opening, blades projecting inwardly from the peripheral wall of the drum, and deflectors interposed between the/ blades of the drum and radial blades on the diaphragm.

4. In a classifier for the described purpose, the combination of a rotatable drum having at one end an overflow outlet, an end wall for the opposite end of the drum having a substantially central discharge opening, a diaphragm within the drum and projecting at its periphery to a point adjacent to but separated from the interior peripheral wall of the drum, separated radial blades projecting from one surface of said diaphragm and connecting with the end wall of the drum, forming guides to deliver directly to said central discharge opening, the diaphragm projecting below the level of the material as determined by the overflow and means for delivering water and material to said drum at a point between the diaphragm and over- 5. In a classifier for the described purpose, the combination of a rotatable drum having at one end a circumferential enlarged portion constituting a peripheral-pocket, an end wall for the drum having'a substantially central discharge opening, the opposite end of the drum forming an overflow, a diaphragm within the drum and extending at its periphery to a point adjacent to but separated from the interior peripheral wall of the drum to the side of said circumferential pocket, separated radial blades project ing from one surface of said diaphragm and connecting with the end wallof the drum forming guides to deliver directly to said central discharge opening, means for feeding material through the open end of the cylinder to a pointbetween the diaphragm and overflow.

6. In a classifier for the described purpose, the combination of a rotatable drum having at one end a circumferential enlarged portion constituting a peripheral pocket, an end wall .for the drum having a substantially central discharge opening, a diaphragm within the. drum and extending at its periphery to'a point adjacent to but separated from the interior peripheral wall of the drum to the side of said circumferential pocket, separated radial blades. projectingfrom one surface of said diaphragm and connecting with the end wall of the drum, forming guides to deliver directly to said central discharge opening, the drum being open at its opposite end to form an overflow,

'means for feeding material to be treated through the open end of the cylinder to a point adjacent the diaphragm, and means for delivering water to the opposite side of the diaphragm.

7 Inaclassifier for the described purpose, the combination of a rotatable drum having at one end a circumferential enlarged portion constituting a peripheral pocket, an end wall for the drum having a substantially central discharge opening, a diaphragm within the drum and extending at its periphery to' a point adjacent to but separated from the interior peripheral wall of the drum to the side of said circumferential pocket, separated radial blades projecting from one surface of said diaphra and connecting with the end wall of the drum, forming guides to deliver directly to said central discharge opening, means for delivering water and material to be treated into the drum at a point adjacent one side of the diaphragm, and means for introducingwater to the opposite side of the diaphragm.

8. Inaclassifier for the purpose described, the combination of a horizontally disposed rotatable drum having at bne end an overflow outlet and at its opposite end a discharge outlet, a diaphragm positioned in the drum and extendlng below the level of material established by the overflow outlet, means for feeding material and water into the drum between the diaphragm and overflow outlet, and elevating means carried by the drum to the opposite side of the diaphragm, and guide ribs on the diaphragm to lead the material from the elevating means to the discharge outlet.

9. Inaclassifier for the described purpose, the combination of a horizontally disposed conical rotatable drum, the smallerend of which being open andconstituting an overflow, and a wall for the opposite enlarged hragm-and discharge-fiend wall of thedmm end having a central discharge opening, said or] elevating and guiding I the material. be enlarged end of the drum forming a pocket, said discharge.

a diaphragm within the drum a jacent the In testimony whereof I have signed my 1J5 enlarged end and extending below the level name to this specification in the presence of of the matleriial elstablishged by the overflow two subscribing witnesses.

out et, sai ia ragm ing se 'arated at v its edge from tl ie wall of the dri im, means LAMARTINE TRENT for feeding material and water to the drum between the diaphragm and overflow out let, and means interposed between the dia- Witnesses:

N. A. ACKER, WALTER 15.1mm". 

